baber/WOPTO huggingface dataset:
Patent CA-1134240-A (CA)
Inventor: BOBNAR LOUIS R
IPC: F16K17/00
Filed: 1978-04-20
Granted: 1982-10-26
Abstract: ABSTRACT OF THE DISCLOSURE:           A pilot operated hydraulic holding valve includes a poppet valve member which is biased to close by the pres-sure generated by the load being held in direct proportion to the magnitude of that pressure, thereby eliminating the need for mechanical biasing means and reducing the pilot pressure required to open the valve at low load pressures.
Patent CA-1101484-A (CA)
Inventor: FOHL TIMOTHY
IPC: G03B27/16
Filed: 1978-04-28
Granted: 1981-05-19
Abstract: COPY APPARATUS USING CHEMICAL FLASHLAMP                              ABSTRACT       A portable low-cost copier comprises a housing having a bottom surface at which a photosensitized sheet and an original can be disposed.  Disposed within the housing is a chemical flashlamp which is ignited to make the copy.
Patent CA-1068418-A (CA)
Inventor: KITCHEN JOHN P
IPC: A47C23/043
Filed: 1978-05-15
Granted: 1979-12-18
Abstract: ABSTRACT OF THE DISCLOSURE      A box spring assembly is disclosed in which a plurality of main wire springs and intermediate wire springs are mounted on a generally rectangular frame.  Each wire spring has a generally straight body portion and relatively short depending end portions, each of which is formed to a generally fish-mouth configuration. The end portions are secured to the frame and provide a substantial resistance to downwardly directed loads.
Patent CA-1047351-A (CA)
Inventor: BERGER RICHARD M
IPC: A24D3/00
Filed: 1978-06-22
Granted: 1979-01-30
Abstract: ABSTRACT OF THE DISCLOSURE            The invention provides an apparatus for making smoke filter means comprising, a. a source of a bondable filtering material including a multiplicity of fibrous members, b. means defining an elongated bonding zone, c. means for continuously feeding said filtering material into and through said bonding zone, d. means for feeding a bond activating agent into said bonding zone and into contact with said filtering material at a point intermediate the path of travel of said filtering material through said bonding zone to bond said fibrous members of said filtering material to each other at spaced contact points, thereby forming an elongated, smoke-permeable, rod defining a tortuous path for passage of smoke therethrough, e. elongated mandrel means having a forward end portion axially positioned within said means defining said bonding zone to define an annular space through which said filtering material must pass, f. means for reciprocating said mandrel means within said bonding zone in timed relationship to the passage of said filtering material through said bonding zone between a first position wherein said forward end portion extends at least as far forwardly in the path of travel of said filtering material as the point at which said filtering material is contacted by said bond activating agent, to thereby produce a smoke-permeable annular wall of bonded fibrous members as said filtering material passes said point, and a second position wherein said forward end portion extends sufficiently rearwardly of said point in the path of travel of said filtering material to permit a portion of said filtering material to extend transversely completely across said bonding zone before reaching said point, to thereby produce a smoke-permeable plug section of bonded fibrous members as said filtering material passes said point, said annular wall and said plug sections being integral with each other, whereby said rod is provided with intermittent inner cavities totally enclosed and surrounded by said annular wall and by plug sections forwardly and rearwardly thereof, g. forming means for forming outer cavity means on the exterior surface of said rod, said forming means producing outer cavity means axially spaced from each other at a position on either side of a transverse axis intermediate each inner cavity means with the surface area of said outer cavity means forming a minor portion of the total exterior surface of said rod, h. means for overwrapping said rod with an overwrapping material so as to juxtapose portions of the inner surface of said overwrapping material with peripheral portions of the exterior surface of said rod to form sealed areas precluding passage of smoke thereacross, and i. severing means for transversely severing said overwrapped rod at selected locations to form filter elements.
Patent CA-1105033-A (CA)
Title: [n-(5-t-butyl-3-isoxazolyl)alkanamide derivatives] and herbicidal compositions containing them
Inventor: YUKINAGA HISAJIRO
IPC: C07D261/14
Filed: 1978-07-07
Granted: 1981-07-14
Abstract: N-(5-t-BUTYL-3-ISOXAZOLYL)ALKANAMIDE DERIVATIVES       AND HERBICIDAL COMPOSITIONS CONTAINING THEM                         Abstract:       Herbicidal compounds represented by the formula:                      wherein R is t-butyl; R1 is hydrogen or methyl; R2 is alkyl (C2 to C6), alkenyl (C3 to C4) or cyclopropyl; and X is hydrogen or halogen; and herbicidal compositions containing them,
Patent CA-1125760-A (CA)
Inventor: BOUILLON CLAUDE
IPC: A61K8/49
Filed: 1978-07-25
Granted: 1982-06-15
Abstract: Le tris (N-oxy pyridinethiolate) d'aluminium, répondant à la formule suivante: (I) est obtenu en faisant réagir dans un solvant anhydre l'isopropylate d'aluminium avec trois équivalents molaires de N-oxyde de pyridine-2 thiol.  Ce composé présente une excellente activité vis-à-vis des bactéries Gram (+) telles que Staphylococcus Aureus, Bacillus Subtilis et Micrococcus Luteus; des bactéries Gram (-) telles que Escherichia Coli, Klebsiella Pneumoniae et Pseudomonas Aeruginosa; vis-à-vis des levures telles que Saccharomyces Cerecisiae et Candida Lipolytica ainsi que vis-à-vis des moisissures telles que Aspergilus Niger et Penicillium Notatum.  Pris seul ou en association avec un autre principe actif et notamment le tri(campho-10 sulfonate) d'aluminium, il peut être incorporé dans de multiples compositions cosmétiques ou thérapeutiques destinées soit à l'hygiène soit au traitement des animaux à sang chaud, aussi bien par application topique que par voie orale.
Patent CA-1090462-A (CA)
Inventor: SNYDER CHARLES A
IPC: H01R13/74
Filed: 1978-08-18
Granted: 1980-11-25
Abstract: RETENTION MEANS FOR SNAP-IN SPRING     ABSTRACT OF THE DISCLOSURE           An electrical wiring device, which may be an incandescent lamp socket, receptacle, switch, pilot light or any other wiring device intended for mounting in an opening of a metal sheet, has a mounting means of the snap-in spring type, including divergent spring arms formed with sheet engaging elements on their free ends, that have serrations adapted to engage opposed corners of the mounting opening formed in the metal sheet or plate in which the wiring device is to be supported.  The serrations differ from conventional types used in springs of this type in that the portion of the spring arm in which the serrations are formed has a centrally depressed area which offsets inwardly, from the general plane of the teeth, all but the side edge portions of the portion of the spring arm in which the serrations are formed.  The serrations are limited to the side edge portions rather than extending fully across the width of the spring arm as has been conventional practice, thus to promote retention of an accurate, sharp, serration.  Use of a high tensile strength steel, that does not require tempering and hardening as a final production step, is made feasible by the invention.
Patent CA-1102087-A (CA)
Inventor: LANCELOT HARRY B III
IPC: E04B1/38
Filed: 1978-09-05
Granted: 1981-06-02
Abstract: JOIST HANGER     Abstract of the Disclosure A joist hanger has a shroud with a rear wall and side walls with aligned openings for receiving the legs of a U-shaped pin.  A jack screw, straddled by the legs, or a simple support plate rests on the pin to support a joist end.          An L angle piece is welded or hinged to the rear wall.          The level of the joist can be changed by the jack screw, and/or by turning a threaded hinge bolt, permitting the shroud to ride up or down on the bolt.
Patent CA-1119973-A (CA)
Inventor: KOBER ALFRED E
IPC: B03C3/013
Filed: 1978-12-05
Granted: 1982-03-16
Abstract: ALFRED E. KOBER IRA KUKIN          METHOD OF CONDITIONING FLUE GAS                ABSTRACT OF THE DISCLOSURE           The collection characteristics of particles entrained in a particle-laden gas for collection by an electrostatic precipitator are improvised by injecting finely divided sodium and ammonium phosphate salts into a particle-laden gas stream formed by the burning of coal. Sufficient additive is injected to provide 24-1200 grams per metric ton of coal burned to form the gas. After injection, the stream is directed through a heat exchange means and finally into the precipitator to collect the particles therein.
Patent CA-1118145-A (CA)
Inventor: LEMSTRA PIETER J
IPC: C08F14/00
Filed: 1978-12-06
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE         Vinyl chloride polymers with a large BET surface area and good plasticizer absorption are pre-pared by suspension polymerization of vinyl chloride in the presence of a primary suspension agent and as a secondary suspension agent, a polyvinyl alcohol having a degree of polymerization of at least 250 and the percent of solvolysis in the range of 40 to 70 moles %  which is narrowly distributed.  The vinyl chloride polymer so produced has a relatively narrow particle size distribution and a uniformity factor of at least 4.
Patent CA-1142661-A (CA)
Inventor: ITO TATSUO
IPC: H03J7/20
Filed: 1979-01-23
Granted: 1983-03-08
Abstract: ABSTRACT OF THE DISCLOSURE:        A channel selecting device in electronic tuning radio receivers having a circuit for facilitating the manual channel selection.  The device comprises a group of gate circuits adapted to temporarily interrupt an instruction for manual channel selection and, instead, apply an AFC voltage to the control system of a bias voltage applied to a variable reactance element upon receiving broadcasting waves.
Patent CA-1125361-A (CA)
Title: Electrically actuated time delay device
Inventor: KIRBY IAN J
IPC: H03K17/28
Filed: 1979-02-01
Granted: 1982-06-08
Abstract: Separate electrical timing and load activation devices are provided for each of plural electrical loads and each device is connected to receive reference timing signals from a central unit. Each of the separate timing and load activation devices measures a reference time interval accurately defined by the reference timing signals and subsequently activates its associated electrical load after a respectively corre sponding predetermined time delay which is determined as a function of the locally measured reference time interval.
Patent CA-1115811-A (CA)
Title: Household type sewing machine having  microprocessor control
Inventor: CARBONATO GIANFRANCO
IPC: D05B19/10
Filed: 1979-02-20
Granted: 1982-01-05
Abstract: IMPROVED HOUSEHOLD TYPE SEWING MACHINE       HAVING MICROPROCESSOR CONTROL Abstract of the Disclosure A household type sewing machine having a bed, a standard rising from said bed, a horizontal arm overhanging said bed, said arm ending with a head, a needle bar means disposed in said head for enabling transverse oscillation thereof relative to the direction of fabric feed in said sewing machine, feed means for adjusting the length and direction of said fabric feed, actuator means for adjusting the transverse position of said needle bar means and the positional displacement of said feed means in response to control signals provided thereto and first static memory means for retrievable storing a first plurality of different predetermined stitch patterns each having associated retriev-ably stored bight and feed data corresponding to predetermined positional coordinates of said needle bar and feed means for defining associated stitch position coordinates for the stitches comprising said stitch patterns; characterized by a microcomputer integrated circuit means operatively connected to said static memory means and to said actuator means for selectively pro-cessing said stored stitch pattern data from said static memory means and providing output control signals to said actuator means based on said selectively processed stitch pattern data for controllably adjusting at least the trans-verse position of said needle bar means, said microcomputer processing means comprising means capable of selectively controllably functionally operating on said stored stitch pattern data in response to input control signals for controll-ably redefining said stored stitch pattern data for selectively creating output control signals for said actuator means different from the output control signals corresponding to any one of said stored stitch patterns whereby at least the transverse position of said needle bar means may be selectively varied to redefine a stitch pattern arrangement different from any one of said stored stitch patterns; and keyboard means operatively connected to said microcomputer means for providing said input control signals to said microcomputer processing means for initiating the selection of at least one stored stitch pattern and the functional operation to be performed on said associated selected stored stitch pattern data for controllably adjusting at least the transverse position of said needle bar means for selectively providing a final stitch pattern arrangement from said plurality of stored stitch patterns, whereby said sewing machine is capable of providing stitch pattern arrangements corresponding to said stored stitch patterns per se as well as to selectably creatable variations thereof.
Patent CA-1115494-A (CA)
Inventor: YAMADA KOICHI
IPC: B01D53/50
Filed: 1979-02-27
Granted: 1982-01-05
Abstract: PROCESS FOR THE REMOVAL OF SULFUR OXIDES FROM     EXHAUST GASES USING SLURRY OF RED MUD         CONTAINING CALCIUM ION    Abstract of the Disclosure The specification discloses a process for the removal of sulfur oxides from exhaust gases by absorption using a slurry of red mud containing calcium ions.  The following steps are carried out:            (1)  contacting an exhaust gas containing sulfur oxides at a temperature not higher than about 100°C. with a slurry of red mud containing calcium ions obtained from the next step (2) to absorb sulfur oxides in the gas until the pH of the slurry is in the range of 4.3 to less than 6 while maintaining the molar fraction of SO4  to the total SO2 in the slurry at the said pH range at 0.05 to 0.7; and then, (2)  contacting the treated gas with a fresh slurry of red mud containing calcium ions to absorb further sulfur oxides in the gas, while maintaining the concentration of NaHSO3 in the slurry at not more than about 8 g/?.            The process can achieve a very efficient rate of sulfur oxides removal and a high leaching yield of soda from the red mud, without resulting in scale formation in the absorption equipment.
Patent CA-1151798-A (CA)
Inventor: ENIKOLOPOV NIKOLAI S
IPC: C08G59/06
Filed: 1979-03-08
Granted: 1983-08-09
Abstract: PROCESS FOR PREPARING EPOXY RESIN                   ABSTRACT OF THE DISCLOSURE       A process for preparing epoxy resin comprises a step of allowing a mixture of epichlorohydrin, 2,2-bis(p-hydro-xyphenyl)propane, and a solvent in the presence of an alka-li used in an amount of from 0.4 to 5% by weight of epi-chlorodhydrin to stay at a temperature of from 45 to 70°C to obtain a homogeneous mass. Subsequently an alkali used in an amount of from 45 to 50% by weight of epichlorohydrin is added to the resultant mass, and polycondensation is conducted at a temperature of 70 to 90°C under stirring to obtain the end product.        The invention will find application in the manufacture of synthetic resins and products based thereon.
Patent CA-1099211-A (CA)
Inventor: SANDIFORD BURTON B
IPC: E21B33/138
Filed: 1979-03-27
Granted: 1981-04-14
Abstract: "ABSTRACT OF THE DISCLOSURE"           A process of treating a plurality of wells involved in an enhanced oil recovery process so that oil and/or gas can be displaced from a reservoir in a more uniform manner compris-ing treating the formation surrounding and in the immediate vicinity of each well involved in the process with a solution that sets with time to form a plug in the more permeable zones of the reservoir surrounding each well.
Patent CA-1112903-A (CA)
Inventor: HICKS BRADFORD W
IPC: F16H57/037
Filed: 1979-04-18
Granted: 1981-11-24
Abstract: GEARED TORQUE SELECTOR                   ABSTRACT OF THE DISCLOSURE      An auxiliary transmission unit is connected to the input of a power divider, which power divider is connected between a pair of pinion shafts for respectively driving the front and rear axles of a tandem axle construction. The power divider includes at least one pair of meshing axle gears drivingly interconnected between the pinion shafts for transmitting torque to each of the axles.  The auxiliary transmission unit includes a single pair of mesh-ing transmission gears, one thereof being associated with the transmission input shaft and the other being associated with a parallel countershaft.  The output of the trans-mission unit comprises one of the shafts of the power divider.  A clutch sleeve is shiftably associated with the input shaft and can be engaged with the transmission output for permitting direct driving thereof, or it can alternately be shifted into a disengaged position whereby the input transmission gear drivingly rotates the counter-shaft to thereby provide a reduced speed ratio through the auxiliary transmission unit.  The countershaft is drivingly connectable to one of the axle gears for driving the power divider when the auxiliary transmission is in its low speed condition.
Patent CA-1113745-A (CA)
Inventor: PAGE JOE W JR
IPC: A61C1/05
Filed: 1979-04-12
Granted: 1981-12-08
Abstract: Abstract of the Disclosure A straight dental handpiece has a tubular housing for a motor driven collet mechanism rotatably supported at one end of the housing.  The burr receiving collet mechanism is actuated by a pair of diammetrically opposed cams supported for rota-tional movement about an axis extended transversely of the housing.  In response to rotation of the cams, a cam follower on the collet mechanism is axially moved to actuate the collet mechanism to a burr receiving position.  The cams are rotated by an external lever on the housing that is pivotally movable from a longitudinally extended operating position in nested relation with the housing, wherein the burr is gripped in the collet mechanism, to a burr releasing position projected generally radially of the housing.
Patent CA-1116536-A (CA)
Inventor: NYER EVAN K
IPC: B01D39/04
Filed: 1979-04-24
Granted: 1982-01-19
Abstract: PROCESS FOR REMOVAL OF SUSPENDED SOLIDS FROM LIQUID                  Abstract of the Disclosure A process for removal of solids from a liquid containing suspended solids by flowing the liquid through a filter bed of discontinuous polyurethane particles in a filtration vessel.  For renewal of the filter bed, de-posited solids are removed from the discontinuous poly-urethane particles by adding at least one bed volume of a regeneration liquid to the filter vessel and mechanically mixing the filter bed of polyurethane particles in a total volume of liquid comprising the  regeneration liquid and the hold-up liquid in the  filter bed resulting from the termination of liquid flow therethrough, thereby forming solids-enriched liquid, and discharging the solids-enriched liquid from the filtration vessel.     S P E C I F I C A T I O N
Patent CA-1124125-A (CA)
Inventor: SHENK EDWIN K
IPC: G02B7/40
Filed: 1979-04-25
Granted: 1982-05-25
Abstract: ABSTRACT OF THE DISCLOSURE       The lens mount of a movie camera is automatically positioned to maintain an image of a subject in focus on a focal plane of a recording station by generating periodic range pulses having a characteristic directly related to subject range, and converting each pulse to a number which represents the focus position of the lens mount.  Such number is stored in a first register whose contents vary in response to changes in subject distance at a rate dependent on the pulse repetition rate of the range pulses.  The actual position of the lens mount is determined in the form of a second number which is stored in a second register whose contents vary in response to changes in the position of the lens mount at a rate determined by the rate of change of position,  Rotation of a reversible motor is initiated when the contents of the registers are unequal, rotation being terminated when the contents are equal.  The direction of rotation is in accordance with which of the two registers has the larger contents.  Alternatively, rotation is initiated only after it is determined that the contents of one register exceeds the other over a majority of a predetermined number or range pulses, the direction of rotation being determined by which of the two registers has the larger contents a majority of the time over such predetermined number of range pulses.
Patent CA-1128996-A (CA)
Title: Gate circuit for a gate turn-off thyristor
Inventor: ONDA KENICHI
IPC: H03K17/732
Filed: 1979-06-20
Granted: 1982-08-03
Abstract: ABSTRACT OF THE DISCLOSURE         A gate circuit for a gate turn-off (GTO) thyristor comprises current supply means for supplying a turn-off current to the GTO thyristor, and energy storing means for storing energy by receiving a current from the current supply means and supplying the stored energy to the GTO thyristor as the turn-on current therefor.
Patent CA-1141465-A (CA)
Inventor: FELDMANN MICHEL
IPC: H03H15/00
Filed: 1979-06-21
Granted: 1983-02-15
Abstract: RECURSIVE FILTER USING CHARGE TRANSFER DEVICES          ABSTRACT OF THE DISCLOSURE           A CTD recursive filter including, within a single channel, two side-by-side CTD delay lines wherein charges are respectively transferred in opposite directions.  Each split electrode of the first CTD delay line constitutes a pair with a corresponding split electrode of the second delay line, each even pair of split electrodes being separated from the next odd pair of split electrodes by an even bridge electrode occupying the entire width of -the channel, and each odd pair of split electrodes being separated from the next even pair of electrodes by an odd bridge electrode also occupying the entire width of the channel.  A split electrode of the first delay line in an even pair and the split electrode of the second delay line in the next odd pair have lengths the sum of which is a constant, when the even pair is separated from the concerned odd pair by an even bridge electrode.  A split electrode of the first delay line in an odd pair and the split electrode of the second delay line in the next even pair have lengths the sum of which is equal to the constant, when the odd pair is separated from the even pair by an odd bridge electrode.  At each odd clock pulse, the odd bridge electrode charges are distributed to the closer even bridge electrodes in accordance with the length of the split electrode of the first delay line in the close even pair and the length of the split electrode of the second delay line in the close odd pair, and, at each even clock pulse, the even bridge electrode charges are distributed to the closer odd bridge electrodes in accordance with the length of the split electrode of the first delay line in the close odd pair and the length of the split electrode of the second delay line in the close even pair.  Each delay line is connected from an input for the signal to be filtered and to an output for the filtered signal.